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AMRLevelIdealMHD.H

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//
// This software is copyright (C) by the Lawrence Berkeley
// National Laboratory.  Permission is granted to reproduce
// this software for non-commercial purposes provided that
// this notice is left intact.
//
// It is acknowledged that the U.S. Government has rights to
// this software under Contract DE-AC03-765F00098 between
// the U.S.  Department of Energy and the University of
// California.
//
// This software is provided as a professional and academic
// contribution for joint exchange. Thus it is experimental,
// is provided ``as is'', with no warranties of any kind
// whatsoever, no support, no promise of updates, or printed
// documentation. By using this software, you acknowledge
// that the Lawrence Berkeley National Laboratory and
// Regents of the University of California shall have no
// liability with respect to the infringement of other
// copyrights by any part of this software.
//

#ifndef _AMR_LEVEL_IDEAL_MHD_H_
#define _AMR_LEVEL_IDEAL_MHD_H_

#include "FArrayBox.H"
#include "LevelData.H"
#include "AMRLevel.H"
#include "CoarseAverage.H"
#include "FineInterp.H"
#include "LevelFluxRegister.H"

#include "LevelGodunov.H"
#include "PhysIBC.H"
#include "Box.H"
#include "IntVectSet.H"
#include "Vector.H"
#include "DisjointBoxLayout.H"


class AMRLevelIdealMHD : public AMRLevel
{
public:

  AMRLevelIdealMHD();


  virtual ~AMRLevelIdealMHD();


  virtual void define(AMRLevel*  a_coarserLevelPtr,
                      const Box& a_problemDomain,
                      int        a_level,
                      int        a_refRatio);


  virtual void define(AMRLevel*            a_coarserLevelPtr,
                      const ProblemDomain& a_problemDomain,
                      int                  a_level,
                      int                  a_refRatio);



  virtual Real advance();


  virtual void postTimeStep();


  virtual void tagCells(IntVectSet& a_tags);


  virtual void tagCellsInit(IntVectSet& a_tags);


  virtual void regrid(const Vector<Box>& a_newGrids);


  virtual void initialGrid(const Vector<Box>& a_newGrids);


  virtual void initialData();


  virtual void postInitialize();


  virtual void patchGodunov(const PatchGodunov* const a_patchGodunov);

#ifdef HDF5


  virtual void writeCheckpointHeader(HDF5Handle& a_handle) const;


  virtual void writeCheckpointLevel(HDF5Handle& a_handle) const;


  virtual void readCheckpointHeader(HDF5Handle& a_handle);


  virtual void readCheckpointLevel(HDF5Handle& a_handle);


  virtual void writePlotHeader(HDF5Handle& a_handle) const;


  virtual void writePlotLevel(HDF5Handle& a_handle) const;
#endif


  virtual Real computeDt();


  virtual Real computeInitialDt();


  virtual void CFL(Real a_cfl);


  virtual void domainLength(Real a_domainLength);


  virtual void refinementThreshold(Real a_refineThresh);


  void tagBufferSize(int a_tagBufferSize);

protected:
  // Create a load-balanced DisjointBoxLayout from a collection of Boxes
  DisjointBoxLayout loadBalance(const Vector<Box>& a_grids);

  // Setup menagerie of data structures
  void levelSetup();

  // Get the next coarser level
  AMRLevelIdealMHD* getCoarserLevel() const;

  // Get the next finer level
  AMRLevelIdealMHD* getFinerLevel() const;

  // Conserved state, U, at old and new time
  LevelData<FArrayBox> m_UOld,m_UNew;

  // CFL number
  Real m_cfl;

  // Grid spacing
  Real m_dx;

  // Interpolation from fine to coarse level
  FineInterp m_fineInterp;

  // Averaging from coarse to fine level
  CoarseAverage m_coarseAverage;

  // New time step
  Real m_dtNew;

  // Number of converved states
  int m_numStates;

  // Names of conserved states
  Vector<string> m_stateNames;

  // Number of ghost cells (in each direction)
  int m_numGhost;

  // Physical dimension of the longest side of the domain
  Real m_domainLength;

  // Level integrator
  LevelGodunov m_levelGodunov;

  // Flux register
  LevelFluxRegister m_fluxRegister;

  // Patch integrator (factory and object)
  PatchGodunov* m_patchGodunovFactory;
  PatchGodunov* m_patchGodunov;

  // Refinement threshold for gradient
  Real m_refineThresh;

  // Tag buffer size
  int m_tagBufferSize;

  // Flag coarser and finer levels
  bool m_hasCoarser;
  bool m_hasFiner;

  DisjointBoxLayout m_grids;

private:
  // Disallowed for all the usual reasons
  void operator=(const AMRLevelIdealMHD& a_input)
  {
    MayDay::Error("invalid operator");
  }

  // Disallowed for all the usual reasons
  AMRLevelIdealMHD(const AMRLevelIdealMHD& a_input)
  {
    MayDay::Error("invalid operator");
  }
};

#endif

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